MagnaFlow's HM Grade direct-fit converter replaces the complete passenger bank converter assembly on federal emissions trucks, bolting up at the manifold flange with no cutting or welding. The 50 inch clam-shell body is built from 16 gauge 409 stainless steel tubing with 308 stainless steel MIG welds and OE-sized 410 stainless barbed hangers, and carries a ceramic substrate loaded with extra precious metal so the engine management system stays in closed loop and the check engine light stays off. A single post-converter oxygen sensor port and mandrel bent tubing reproduce the OE flow path and sensor position. Installation hardware is in the box: two flat washers, one Torca AccuSeal clamp, two bolts and two nuts.
Specifications
| Type | Direct-fit catalytic converter (MagnaFlow HM Grade) |
| Position | Right (passenger side), primary converter; one per bank |
| Emissions Compliance | Federal / EPA compliant. Not CARB certified. MagnaFlow states HM Grade converters are not legal for sale or installation in California, Colorado or New York. |
| Body Type | Clam-shell |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless steel MIG welds, 410 stainless steel hangers |
| Substrate | Ceramic |
| Overall Length | 50 in |
| Inlet | Flange |
| Outlet | Pipe connection |
| Oxygen Sensor Ports | 1 (post-converter) |
| Drive Type | 2WD |
| Hardware Included | 2 flat washers, 1 Torca clamp, 2 bolts, 2 nuts |
| Quantity | 1 (sold individually, one side only) |
| Part Number | 23317 |
| Warranty | Limited 5-year construction warranty; limited 25,000-mile emissions warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-1998 | Ford | F-150 | Base |
| 1997-1998 | Ford | F-150 | XL |
| 1997-1998 | Ford | F-150 | XLT |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
